Elevator



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f ELEVATOR. No' 5-20697- ,Patented May 29, 1894 W/TNESSES: f

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W. H. MGCOY. BLEVATOR.

No. 520,697. Paterited May 29, 1894.

W/TNESSES: INVENTO? Arron/vers.

1HE NA'noNAL umoempmna COMPANY.

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(No Model.) 3 Sheets-Sheet 3.

W. H. MoGOY. BLEVATOR.

` No. 520,697. Patented May 29s,)1894.

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` UNITED STATES PATENT OFFICE.

WILLIAM HARRISON MCOOY, OF LOS ANGELES, CALIFORNIA.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 520,697, dated May 29, 1894.

Application tiled October 1.8, 1893. Serial No. 488,458. (No model.)

.To all whom t may concern:

Be it known that I, 'WILLIAM HARRISON MOCOY, of Los Angeles, in the county of Los Angeles and State of California, have invented a new and Improved Elevator, of which the following is a full, clear, and exact desciip- 'l he invention relates to vacuum elevators,

and its object is to provide a new and im-.

proved elevator which is simple and durable in construction, very effective in operation, and more especially designed for raising water to a desired level for irrigating or other purposes.

The invention consists of certain parts and details and combinations of the saine, as will be hereinafter described and then pointed out in the claims.

Reference is to be had to the accmpan ying drawings, forming a part of this specification, 1n which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a sectional side elevation of the improvement. Fig. 2 is a transverse section of one of the suction valves onY the line 2-2 of Fig: 1. Fig. 3 is an enlarged sectional side elevation of the steam cylinder, 'on the line 3-3 of Fig. 4. Fig. 4t is a sectional plan view of thesame on the line 4--4 of Fig. 3. Fig. 5 is a sectional plan view of the improvement on the line 5 5 of Fig. 1. Fig. 6 is an enlarged sectional side elevation of the water discharge. Fig. 7 is an enlarged sectional side elevation of the regulating valve. Fig. 8 isa diagrammatical view of the improvement; and Fig.

9 is a similar view of the same, with parts in a different position. f

The improved elevator is provided with the water-receiving receptacles A and A', provided at their lower ends with suction pipes B and B respectively, connected with a suitable water supply, the suction pipes being provided with upwardly-opening suction valves B2 and B3 respectively, adapted to close when the water is discharged from the respective receptacle. or B3 can be opened by hand from the outside by means of an arm B4 adapted to engage the under side of the hinged valve, as illustrated 1n Fig. 2, the said arm being attached' to a Each of the valves B2 .plainly illustrated in Figs. 3, 4, 8 and 9.

end of the piston rod F4 is formed with a reshattB5 mounted to turn in the side of the suction pipe and carrying at its outer end a handle B6, under the control of the operator. This device isnecessary in starting the elevator, as hereinafter more fullydescribed.

From the lower ends of the water receiving receptacles A and A lead the discharge pipes C and C respectively, connected with a common outlet O2 containing a valve C3, (see Fig. 6,) held on a valve stem C4 fitted to slide longitudinally in suitable bearings arranged in the outlet C2, the said valve being adapted to alternately close the connection between the outlet and the discharge pipes C and C. The water is drawn into the receptacles A and A alternately, by forming vacuums therein, and the Water in a filled receptacle is discharged or forced out through the corresponding discharge pipe C or C', by pressure of steam admitted into the upper end of the respective receptacle by means of pipes D and D respectively, connected with a' steam cylinder E, provided with a steam inlet pipe E connected with a boiler or other source of steam supply. The pipes D D discharge into cups D2 D3 respectively suspended in the receptaclesAA respectively as plainly shown inv the drawings. By this arrangement the steam on entering either receptacle through the corresponding pipe D or D will pass into the corresponding cup D2 or D3 so as to break or check its momentum and allow it to expand andpress quietly down onto the water with its full expansive force. The cylinder E is also provided with an exhaust pipe having a suitable check valve, andin the bottom of the said cylinder, near the ends thereof, are arranged outlet openings E3 and E4 for drain; ing the Water from the ends of the cylinder after the piston valve F fitted to'slide in the said cylinder has been shifted by the water pressure, as hereinafter more fully described.

The piston valve F is provided with three pistons F', F2 and F3, held on a common piston glo rod F4 and placed suitable distances apart, as 9 5 One duced extension F5 passing through a stufling box in one head of the cylinder E, the outer end ofthe said extension being pivotally connected with a handle lever FG forshifting the said piston valve by hand when starting the machine, as hereinafter more fully described. Near the outer ends of the pistons F' and F3 are arranged V-shaped peripheralgrooves FT and F8 respectively, which serve to permit leakage of steam to reduce the steam pressure in the cylinder E for the purpose hereinafter mentioned. Into the ends of the cylinder E open the water supply pipes G and G connected at their lower ends with the inte riorof the receptacles A and A', directly above the suction valves B2 and B3, as plainly shown in the drawings. The inner ends G2 and4 G3 of the said water pipes G and G' form valve seats for valves G4 and G5 respectively, con nected with levers II and I-l' respectively, fulcrumed in the receptacles A and A' respcctively, and carrying ioats H2 and H3 re-. spectively, adapted to actuate the said levers on the rise and fall of the waterin the receptacles, so as to close or open the said valves G4 and G5 to connect and disconnect the water receptacles A and A by the pipes G and G' with and from the ends of the cylinder E.

Into the lower end of the water receptacle A extends a pipe I, and a similar pipe I' passes into the lower end of the receptacle A'. The inner ends of the pipes I and I' are provided with perforated suction caps I2 and I3 respectively, and the said pipes are provided at their upper ends, outside of the receptacles,with check valves I4 and I5 respectively. From the check valve I4 leads a branch pipe I6 into the upper end of the receptacle A', and a similar branch pipes l7 leads from the cheek valve I5 into the upper end of the receptacle A. The branch pipes I and l7 are provided at their inner ends with water sprayers I8 and I9 respectively, through which water passes in jets or sprays into the upper end of thev respective water receptacle A or A. From the water receptacles A and A' also lead exhaust pipes .I and J respectively, reaching with their lower ends to about the caps I2, 13; the upper ends of the said pipes connect with the steam cylinder E so that the steam from the corresponding receptacle can pass into the cylinder E between the pistons F2 and IF3 to be discharged through the exhaust pipe E2.

In the water pipes G and G', near the cylinder E, are arranged regulating valves K,

each provided with a valve body K' and a check valve K2, the stroke of which is limited or regulated by a screw rod K3 screwing in the valve body K', as illustrated in Fig. 7. A similar regulating valve K4 is arranged in the upper end of each of the water receptacles A and A.

The pipes .l J are provided with holes of sufticient size near their entrance to the cylinder E so as to let steam into the said pipes to discharge any water therein, at the same time water is discharged from the cylinder. By these means steam is kept above the Water and the pipes are kept clear to properly eX- l haust through the same.

The operation is as followsz-Vl/h en the machine is in operation and the several parts are in the position illustrated in Fig. 8, then the water, previously drawn into the water receptacle A', is discharged from the saineby the pressure of steam passing, b y means of the pipe D', from the cylinder E into lthe upper end of the said receptacle A', it being iinderstood that the valve in the supply p ipe E' is open and steam passes from the boiler into the cylinder, between the pistons F and F2. The Water passes from the receptacle A into the discharge pipe C' and into the outlet C2 against the valve C3, which is forced to its opposite seat, thus closing the discharge pipe C. The Water is conducted from the outlet C2 to the place where the water is to be used, by suitable pipes or other means.l During this operation in the receptacle A Water is drawn into the receptacle A, as a vacun,m had previously been formed in the said receptacle. Then the level of the water 1n thereceptacle A' has fallen so that the receptacle 1s nearly empty, then the float Il3 on the float lever Il' sinks, whereby the tloat lever Il' causes the valve G" to open and Water under pressure still contained in the receptacle A', can pass into the pipe G' and into the right-liaii d end og the cylinder E, to press against the piston I1" so as to shift the piston valve F to the left into the position shown in Fig. 9. In doing so, the steam is cut olf from the receptacle A', as `the pipe D' is now closed by the p iston F2 and steam is admitted from the cylinder E through the pipe D into the upper end of the receptacle A, Wliich has by this time tilled completely. The pressure of steam on. the water in the receptacle A forces the latter through the discharge pipe C, against the valve C3, whereby the latter is shifted to its opposite seat and communication is established between the said pipe C and outlet C2 wh ile the discharge pipe C' is closed. As soon as steam presses on the water in the receptacle A part of the water passes through the perforated cap I2 into the pipe I and past the check valve I4 into the branch pipe l and into the Water sprayer IB, so that now jets of water pass into the steam-filled receptacle A' to condense the steam therein so as to form a vacuum in this ieceptacle A'. The vacuum causes suction of Water through the pipe B' and suction valve B3 into the receptacle A', so that the latter now begins to fill in about the same ratio as the water is discharged from the other receptacle A. As soon as the water begins to rise in the receptacle A' it lifts the float H3 so that the lever II' seats the valve G5 in the pipe G', whereby the receptacle A' is disconnected from the right-hand end of the cylinder E. The water in this end of the cylinder drains out through the opening E4. Any excess of steam pressure iii the receptacle A is permitted to IIO escape through the pipe J into the cylinder between the pistons F2 and F3, and through the exhaust pipe E2 to the outer air or to any other desired place. Vhen thewater in the receptacle A is nearly all discharged, the iicat H2 drops and its lever H causes the valve G to open so that part of the water in the lower end Ot' the receptacle A is forced under pressure into the pipe G and to the lefthand end of the cylinder E, whereby the water presses on the piston F and shifts the piston valve F to the right into the position shown'in Fig. 8.v The above described operation is then repeated, that is, one receptacle is filled while the other discharges, and vacuums are alternately formed after the water is discharged to draw a new supply of water into the respective receptacle.

When first starting the elevator it is necessaryvthat the operator should shift the piston valve F by hand, by manipulating the lever F6, so as to cause live steam to pass into one of the receptacles, so as to drive the air vcontained therein out of the same through the suction pipe, the valve B2 or B3 therein having previously been opened by hand by the operator manipulating the lever B6, as shown in Fig. l. As soon as the air has been discharged from this receptacle, the valve .1321s permitted to close by the operator throwing the arm B4 downward. The vacuum then formed by the condensing ot the steam in this receptacle, draws water into this receptacle to till the same, and the above described operation then takes place automatically.

Iaving thusv described my invention, I claim as new and desire to secure by Letters Patent- 1. I n an elevator of the class described, the combination with water receptacles connected with a water supply, a steam cylinder connected with the receptacles, and a piston in the cylinder for alternately admitting steam to the said receptacles, of pipes connecting the. receptacles with the ends of the steam cylinder, and valves for controlling the admission ot water to said pipes, said valves being controlled by the rise and vfall of the water in said receptacles substantially as described. n

2. In an elevator of the class described, the combination with water receptacles connected with a water supply, a steam cylinder connected with the receptacles, and a piston in the cylinder for alternately admitting steam to the receptacles, of pipes connecting the receptacles with the ends of the steam cylinder, valves for closing the ends of the said pipes, and floats connected with and operating said valves, substantially as described.

Z'SZA machine of the class described, comprising water-receiving receptacles having suction pipes connected with a water supply, valved pipe connections between the said receptacles for conducting water from one receptacle into the other* to condense steam therein to produce a vacuum, a steam cylinder having a piston valve for alternately connecting the said cylinder with the said water receptacles to force the water out of the said receptacles after they are iilled, water pipes connecting the lower ends of the said water receptacles with the ends of the said cylinder, and iioat valves for opening and closing the said water pipes within the said receptacles, substantially as shown and described.

4t. In a machine of the class described, the combination with asteain cylinder connected with a steam supply and provided with drain openings, ot' a piston valve fitted to slide in the said cylinder and provided with three pistons connected with each other, steam su pply pipes leading from the said cylinder, water receptacles into which discharge the said steam supply pipes, and water pipes connected with the ends of the said cylinder and opening into the lower ends of the said water receptacles, to permit the water under pressure to pass alternately into the ends of the cylinder to shift the piston valve therein, substantially as shown and described.

5. In a machine of the class described, the combination with a steam cylinder connected with a steam supply and provided with drain openings, of a piston valve fitted to slide in the said cylinder and provided with three pistons connected with each other, steam supply pipes leading t'rom the said cylinder, water receptacles into which discharge the said steam supply pipes, water pipes connected with the ends of the said cylinder and opening into the lower ends of the said water receptacles, to permit the water under pressure to pass alternately into the ends of the cylinder to shift the piston valve therein, valves arranged in the lower ends of the said water pipes, and floats held in the said receptacles and controlling the said valves, substantially as shown and described.

6. In a machine of the class described, the combination with a steam cylinder connected with a steam supply and provided with drain openings, of a piston valve fitted to slide in the said cylinder and provided with three pistons connected with each other, steam supply pipes leading from the said cylinder, wa-

v ter receptacles into which discharge the said steam supply pipes, water pipes connected with the ends of the said cylinder and opening into the lower ends of the said water receptacles, to permit the water under pressure to lpass alternately into the ends of the cylinder to shift the piston valve therein, and pipes for connecting the lower end of one water receptacle with the upper end of the other water receptacle, the upper ends of the said pipes being provided with water sprayers, substantially as shown and described.

7. In a machine of the class described, the combination with a steam cylinder connected with a steam supply and provided with drain openings, of a piston valve titted to slide in the said cylinder and provided with three pis'- tons connected with each other, steam supply IOO IZS

pipes leading from the said cylinder, water receptacles into which discharge the said steam supply pipes, water pipes connected with the ends of the said cylinder and opening into the lower ends of the said water receptacles, to permit the Water under pressure to pass alternately into the ends of the cylinder to shift the piston valve therein, pipes for connecting the lower end of one Waterreceptacle with the upper end of the other Water receptacle, the upper ends ofthe said pipes being provided with water sprayers, and each pipe being provided with a check valve, substantially as shown and described.

S. In a machine of the class described, the combination with a steam cylinder connected with a steam supply and provided with drain openings, of a piston valve fitted to slide in the said cylinder and provided with three pisltons connected with each other, steam supply pipes leading from the said cylinder, water receptacles into which discharge the said steam supply pipes, water pipes connected with the ends of the said cylinder and opening into the lower ends of the said Water receptacles, to permit the water under-pressure to pass alternately into the ends of the cylinder to shiftr the piston valve therein, an exhaust pipe leading from the said cylinder between two of the pistons, and pipes leading from the receptacles into the said cylinder between the same pistons, substantially as shown and described.

0. In an elevatorof theclass described, the combination with Water receptacles having discharge pipes connected with a common ontlet provided with a valve, of a steam cylinder, steam pipes leading from the cylinder to the receptacles, a piston in the cylinder for controlling the admission of steam to the receptacles, pipes leading from the lower portions of the receptacles to the ends of the cylinder and provided with valves controlled by the rise and fall of the water in the receptacles, and valved pipe connections between the receptacles for conducting water from one receptacle to the other to produce a vacuum, substantially as herein shown and described.

NVILLIAM HARRISON MCCOY.

Witnesses:

I-I. E. GORNWELL, WM. RILEY. 

